Crank-pin connection



H. A. MYER I CRANK PIN CONNECTION Fgb. 19, 1929.

Filed Nov. 12, 1927 Patented Feb 19, 1929.-

A 1 ,7 2 ,74 i1 WETED ST TES- A' iE-NTYQ F FC E T swam A. MYERSQOF rotnno; oH-Io, Ass'ren'on or clan-Hats ro snrnnnsinroxok,

- 0]? TOLEDO, OHIO; a

CRANK-PIN QONNECTIOIL I Application filed Hovember.

This invention relates to connections be lity of rods are arranged radially of a i 0 an d connected toacominon crank P111; I

at l

'new and improved means, to effect an accurate adjustment of the parts, totake a crank shaft-5.

up wear and maintain proper assembly; and to provide a connectionof the above character which is'simple in construction, inexpensive to manufacture easy to assem ble, and has the new and improved-teas turesof construction 3 and. arrangement hereinafter described. i

The invention is shown byway of illus- 'tratiombut not of limitatiomin' the accompanyl-ng drawings, n which:

Fig. 1 l is a "vertical sec of a radial motor embodying this invention; Fig. 2 is an enlarged"fragmentary sectional elevation of the connection between the connecting rods and crank shaft; Fig. 3 is a front, elevation partly in section of the connection shown in Fig; "2;: v and Fig. 14 is a perspective 'view' of a bearing member. o

The illustrated embodimenfiof the invention comprises Y an engine having radially disposed" cylinders l to receive pistons 2,

each piston having pivotally connected thereto a connecting rod 3, which is cona crank pin 51 0f nected at its lower end to In accordance' with this invention,- there ment with: the crank pin bearing. Flanges a on opposite ends of the crank-pin proj n that equal pressure at all times isvetlected by n hers. Each bearing member (i 'constitutes a vide a guide] to receivethe bearing'menr section of a helix and is sojkformed that it assumes a diagonal position acrosstl1e apparent that thebearing members 6 are o v j forthebearing members. 6," an oil tube -1'1eX-' transversely inclined with respect-to'the crank pin axis so that liability of thepar'ts terminates intermediate'of the bearingsur- .face thereof. It is apparent that unless becoming jammed is eliminated;

tween rods and crank shafts in whicha pluretainers'S form with the crank pin guides to engage opposite end portions 'offthe bear tional elevation the, crank pin. 5

sively around the crank pin bearing 4, and

sufficient space is provided to permit limited relative movement betweenthe segments, Lugs fl ris'ingxfrom-the segments receive bolts 10 for securing the partsto-l gether. By thus providing three separate adjusting bolts it is evident that a fine and accurate adjustment of thexp'arts may be effected so that wear maybe compen L satedfor, and the elements maintained in bearing contact with the'crank pin. The

ing members and,,,h0ld "thesefimembers in place, the ends of the bearing; members being confined by the crank pin flanges 'An outstanding characteristicof this in,- vention resides inpthe provision of bearing members, which in operation, contact in succession the; same surface of the crank pin; 'It -is'to be noted that these members are equidistant from the ends of the crank pin, as well asfrom the axis thereof. N'o" poss bilityexi'stsf for the bear ng members to stick or become jammed due: to their l l I I diagonal configuration which. results in placing one end oi eaclr member in advance Let the opposite end in the path oi? travel,

and the-advanced. end of one member ahead of the rear end oftliemember in front of it. 3 'This also results in substantial bearing contact between the bearing elements and "A further importantfeature consists in thatpressure exerted bylthe connecting rodsis transmitted directly to the crank so that;

maximum power is imparted. Itis obvious ieo each 'bearins'member, and thisis a cardinal improvement over other similarconnections' V in which the prcsjsureexerted byfone' con- In order toprovide adequate lubrication tends through the bore of the crank pin and adjacent s remainder projectlne' her into sliding en." 1

'QTOOVG in the ao gacent bearing member.

The grooves of the various bearing mcmhers arranfiz'ed to register with the end.

of the oil tube ll so that of oil eliminated, and satisfactory lubrication of the bearing is efi coied at all times.

lit will be seen that I have provideda construction which. satisfies the objects euunicrated above and one which constitutes a Valuebleadvance in the art. "While I have shown the invention in a certain physical embodiment it vis .to be understood that modifications of the structure shown may be made by those skilled in this art without depart/inn from my inv-euth'u GXQFCHSGF in the following claims.

W'Vhat I claim as new and desire to secure by Letters Patent is:

L111 combination. a crank pin having a bore, a plurality of piston rods radial oi'said crank pin, a bearing member for each piston rod arranged in radial succession around the J guides means to supply fluent .iubricant. to

the bearing surface of said crank pin ti 7b the bore thereof, and means! inc f cuts on said bearing members ltl fii'lg ad acent hearing members for preventing loss of lubricant from said supply 3. in combii'uniion, a crank pin, a plurality of rods radial o1 said crank pin, long tudinaliy spaced annular guides on said cranl: "o hear j member V I o each be: member having: its front end C v I inadvanee of the rear end of the-bearing iii-ember ahead. of it each bearing member having" a transverse grooves s nentv disfrom posedin. each groove and projectin the resp .ct-ive bearing member in sli' .ng eng pement with a {groove in one of the: adjacent bearing; members.

In testimony whereof I have hereunto sinned my name to this specification.-

nnnni "r A. Yiins.

for each rod; 

